#!@PYTHON@
#    This file is part of GNUnet.
#    (C) 2010 Christian Grothoff (and other contributing authors)
#
#    GNUnet is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published
#    by the Free Software Foundation; either version 2, or (at your
#    option) any later version.
#
#    GNUnet is distributed in the hope that it will be useful, but
#    WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
#    General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with GNUnet; see the file COPYING.  If not, write to the
#    Free Software Foundation, Inc., 59 Temple Place - Suite 330,
#    Boston, MA 02111-1307, USA.
#
# 
#
# This test starts 3 peers and expects bootstrap and a connected clique
# After a successful clique it shuts down all peers and starts the non-bootstrap
# peers, expecting them to reconnect
#
# Conditions for successful exit:
# Both peers have 1 connected peer in transport, core, topology, fs 

import sys
import os
import subprocess
import re
import shutil
import time
from gnunet_testing import Peer
from gnunet_testing import Test
from gnunet_testing import Check
from gnunet_testing import Condition
from gnunet_testing import * 
 

#definitions

testname = "test_integration_clique"
verbose = True
check_timeout = 180

if os.name == "nt":
  tmp = os.getenv ("TEMP")
else:
  tmp = "/tmp"

def cleanup ():
    retries = 10
    path = os.path.join (tmp, "c_bootstrap_server")  
    test.p ("Removing " + path)      
    while ((os.path.exists(path)) and (retries > 0)):
        shutil.rmtree ((path), False)
        time.sleep (1)
        retries -= 1
    if (os.path.exists(path)):
        test.p ("Failed to remove " + path)
    
    retries = 10
    path = os.path.join (tmp, "c_no_nat_client")  
    test.p ("Removing " + path)      
    while ((os.path.exists(path)) and (retries > 0)):
        shutil.rmtree ((path), False)
        time.sleep (1)
        retries -= 1
    if (os.path.exists(path)):
        test.p ("Failed to remove " + path)
    
        retries = 10
    path = os.path.join (tmp, "c_no_nat_client_2")  
    test.p ("Removing " + path)      
    while ((os.path.exists(path)) and (retries > 0)):
        shutil.rmtree ((path), False)
        time.sleep (1)
        retries -= 1
    if (os.path.exists(path)):
        test.p ("Failed to remove " + path)
    shutil.rmtree (os.path.join (tmp, "c_no_nat_client_2"), True)


def success_cont (check):
	global success 
	success = True;
	check.evaluate(True)

def fail_cont (check):    
	global success 
	success = False;
	check.evaluate(False)        


def success_connect_cont (check):
	check.evaluate(True)
	print "Connected clique, shutdown"
	server.stop ()
	client.stop ()
	client2.stop ()
	time.sleep (3)
	client.start ()
	client2.start ()	

	check = Check (test)
	check.add (StatisticsCondition (client, 'transport', '# peers connected',1))
	check.add (StatisticsCondition (client, 'core', '# neighbour entries allocated',1))  
	check.add (StatisticsCondition (client, 'core', '# peers connected',1))
	check.add (StatisticsCondition (client, 'topology', '# peers connected',1))
	check.add (StatisticsCondition (client, 'fs', '# peers connected',1))
	
	check.add (StatisticsCondition (client2, 'transport', '# peers connected',1))
	check.add (StatisticsCondition (client2, 'core', '# neighbour entries allocated',1))  
	check.add (StatisticsCondition (client2, 'core', '# peers connected',1))
	check.add (StatisticsCondition (client2, 'topology', '# peers connected',1))
	check.add (StatisticsCondition (client2, 'fs', '# peers connected',1))  

	check.run_blocking (check_timeout, success_cont, fail_cont)


def fail_connect_cont (check):    
    global success
    print "Failed to connect clique, shutdown" 
    success = False;
    check.evaluate(False)


def check_connect ():
  check = Check (test)
  check.add (StatisticsCondition (client, 'transport', '# peers connected',2))
  check.add (StatisticsCondition (client, 'core', '# neighbour entries allocated',2))  
  check.add (StatisticsCondition (client, 'core', '# peers connected',2))
  check.add (StatisticsCondition (client, 'topology', '# peers connected',2))
  check.add (StatisticsCondition (client, 'fs', '# peers connected',2))

  check.add (StatisticsCondition (client2, 'transport', '# peers connected',2))
  check.add (StatisticsCondition (client2, 'core', '# neighbour entries allocated',2))  
  check.add (StatisticsCondition (client2, 'core', '# peers connected',2))
  check.add (StatisticsCondition (client2, 'topology', '# peers connected',2))
  check.add (StatisticsCondition (client2, 'fs', '# peers connected',2))
  
  check.add (StatisticsCondition (server, 'transport', '# peers connected',2))
  check.add (StatisticsCondition (server, 'core', '# neighbour entries allocated',2))  
  check.add (StatisticsCondition (server, 'core', '# peers connected',2))
  check.add (StatisticsCondition (server, 'topology', '# peers connected',2))
  check.add (StatisticsCondition (server, 'fs', '# peers connected',2))  
  
  check.run_blocking (check_timeout, success_connect_cont, fail_connect_cont)

# 
# Test execution
# 
def run ():
	global success
	global test
	global server
	global client
	global client2	
	
	success = False
	
	test = Test ('test_integration_disconnect', verbose)
	
	server = Peer(test, './confs/c_bootstrap_server.conf');
	server.start();
	
	client = Peer(test, './confs/c_no_nat_client.conf');
	client.start();
	
	client2 = Peer(test, './confs/c_no_nat_client_2.conf');
	client2.start();
	
	if ((client.started == True) and (client2.started == True) and (server.started == True)):
	    test.p ('Peers started, running check')
	    check_connect ()
	    
	server.stop ()    
	client.stop ()
	client2.stop ()
	
	cleanup ()
	
	if (success == False):
		print ('Test failed')
		return False 
	else:
		return True

    
try:
    run ()
except (KeyboardInterrupt, SystemExit):    
    print 'Test interrupted'
    server.stop ()
    client.stop ()
    client2.stop ()
    cleanup ()
if (success == False):
	sys.exit(1)   
else:
	sys.exit(0)